Issue link: https://resources.randsim.com/i/1492512
216 Improved performance for Substructuring Analyses To improve performance, in R23.1 the default NUMSUBLV has been changed from 1000 to 31 in MAPDL and in Mechanical, and the workaround is no more needed. In R18.0 the default for the maximum number of load vectors that can be generated and stored in Sename.sub file, NUMSUBLV, has been increased from 31 to 1000. After developments done in R19.2, in the .esav file of a use pass, a record size associated to any superelement has been increased, which could slow down performance when a large number of time points are calculated during the use pass. A workaround was provided into the documentation to overcome this issue. Improve default settings for better performances